/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.gallery3d.v5.filtershow.editors;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.LinearLayout;

import com.android.gallery3d.v5.filtershow.FilterShowActivity;
import com.android.gallery3d.v5.filtershow.category.MainPanel;
import com.android.gallery3d.v5.filtershow.category.lewa.LewaEditorBaseFragment;
import com.android.gallery3d.v5.filtershow.history.HistoryItem;
import com.android.gallery3d.v5.filtershow.history.HistoryManager;
import com.android.gallery3d.v5.filtershow.imageshow.MasterImage;
import com.android.gallery3d.v5.filtershow.state.StatePanel;
import com.test.filter.R;

public class EditorPanel extends LewaEditorBaseFragment {

    private static final String LOGTAG = "EditorPanel";

    private LinearLayout mMainView;
    private Editor mEditor;
    private int mEditorID;
    int historyPostion;
    int cancelBtnVisible = View.VISIBLE;
    int applyBtnVisible = View.VISIBLE;
    
    public void setEditor(int editor) {
        mEditorID = editor;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        FilterShowActivity filterShowActivity = (FilterShowActivity) activity;
        mEditor = filterShowActivity.getEditor(mEditorID);
        mEditor.reflectCurrentFilter();
        Log.i(LOGTAG,"onAttach");
    }
    public EditorPanel() {
    	 MasterImage masterImage = MasterImage.getImage();
         HistoryManager adapter = masterImage.getHistory();
         int count = adapter.getCount();
         historyPostion = count;
	}
    public void cancelCurrentFilter() {
        MasterImage masterImage = MasterImage.getImage();
        HistoryManager adapter = masterImage.getHistory();
        int position = adapter.undo();
        masterImage.onHistoryItemClick(position);
       
        ((FilterShowActivity)getActivity()).invalidateViews();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
    	 
        FilterShowActivity activity = (FilterShowActivity) getActivity();
        
        if (mMainView != null) {
            if (mMainView.getParent() != null) {
                ViewGroup parent = (ViewGroup) mMainView.getParent();
                parent.removeView(mMainView);
            }
            showImageStatePanel(activity.isShowingImageStatePanel());
            return mMainView;
        }
        mMainView = (LinearLayout) inflater.inflate(R.layout.filtershow_editor_panel, null);
       
        resetPanel();
        
        return mMainView;
    }
    public void setCancelBtnVisible(int visibility){
    	cancelBtnVisible = visibility;
    }
    public void setApplyBtnVisible(int visibility){
    	applyBtnVisible = visibility;
    }
    public int getEditorId(){
    	return mEditorID;
    }
    public void resetPanel(){
    	if(mMainView==null) return ;
    	 FilterShowActivity filterShowActivity = (FilterShowActivity) getActivity();
    	View actionControl = mMainView.findViewById(R.id.panelAccessoryViewList);
    	View editControl = getActivity().findViewById(R.id.controlArea);
        ImageButton cancelButton = (ImageButton) mMainView.findViewById(R.id.cancelFilter);
        cancelButton.setVisibility(cancelBtnVisible);
        ImageButton applyButton = (ImageButton) mMainView.findViewById(R.id.applyFilter);
        applyButton.setVisibility(applyBtnVisible);
        Button editTitle = (Button) mMainView.findViewById(R.id.applyEffect);
        cancelButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                cancelCurrentFilter();
                FilterShowActivity activity = (FilterShowActivity) getActivity();
                activity.backToMain();
            }
        });

        Button toggleState = (Button) mMainView.findViewById(R.id.toggle_state);
        mEditor = filterShowActivity.getEditor(mEditorID);
        if (mEditor != null) {
            mEditor.setUpEditorUI(actionControl, editControl, editTitle, toggleState);
        	mEditor.reflectCurrentFilter();
            if (mEditor.useUtilityPanel()) {
                mEditor.openUtilityPanel((LinearLayout) actionControl);
            }
        }
        applyButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                FilterShowActivity activity = (FilterShowActivity) getActivity();
                mEditor.finalApplyCalled();
                activity.backToMain();
            }
        });

        showImageStatePanel(filterShowActivity.isShowingImageStatePanel());
    }
    public void apply(){    	
    	if(mEditor == null) return ;
    	
    	if(mEditor.getID()==R.id.basicEditor&&MasterImage.getImage().getCurrentFilterRepresentation()==null){
    		return;
    	}
    	mEditor.finalApplyCalled();
    }
    @Override
    public void onDetach() {
        if (mEditor != null) {
            mEditor.detach();
        }
        super.onDetach();
    }

    public void showImageStatePanel(boolean show) {
        View container = mMainView.findViewById(R.id.state_panel_container);
        FragmentTransaction transaction = null;
        boolean child = false;
        if (container == null) {
            FilterShowActivity activity = (FilterShowActivity) getActivity();
            container = activity.getMainStatePanelContainer(R.id.state_panel_container);
        } else {
            transaction = getChildFragmentManager().beginTransaction();
            child = true;
        }
        if (container == null) {
            return;
        } else {
            transaction = getFragmentManager().beginTransaction();
        }
        Fragment panel = getActivity().getSupportFragmentManager().findFragmentByTag(
                MainPanel.FRAGMENT_TAG);
        if (panel == null || panel instanceof MainPanel) {
            transaction.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
        }
        if (show) {
            container.setVisibility(View.VISIBLE);
            StatePanel statePanel = new StatePanel();
            transaction.replace(R.id.state_panel_container, statePanel, StatePanel.FRAGMENT_TAG);
        } else {
            Fragment statePanel = getChildFragmentManager().findFragmentByTag(StatePanel.FRAGMENT_TAG);
            if (child) {
                statePanel = getFragmentManager().findFragmentByTag(StatePanel.FRAGMENT_TAG);
            }
            if (statePanel != null) {
                transaction.remove(statePanel);
            }
        }
        transaction.commit();
    }
}
